Skinput Technology 584q3p

SKINPUT TECHNOLOGY Human body as a TOUCH SCREEN

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Contents:  Introduction What is SKINPUT? Principle of SKINPUT How SKINPUT works? Interactive Capabilities Advantages Applications References Conclusion

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INTRODUCTION  Skinput allows the to simply tap their skin in order to control audio devices, play games, make phone calls and navigate hierarchical browsing systems.  This technology was developed by Chris Harrison, Desney Tan and Dan Morris at Microsoft’s research’s Computational Experiences Group.  It uses the sensors to determine where the taps on their arms.

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What is SKINPUT?  Skinput turns the body into a touch screen surface.  Skinput is an input technology mainly used to control mobile devices.  Skinput is named because it uses the human skin as an input devices or tracking surface.

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PRINCIPLE OF SKINPUT  It listens to vibration in your body.  Skinput also responds to the various hand gestures.  The arm is an instrument.

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BSNL EETP

Pico-Projector A very small projector, basically used in gadgets. Eg. Spice Popcorn (mobile cum projector)

JNTU HYDERABAD

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Bio-Acoustics Study of sound waves inside living body. When a finger taps the skin, several distinct forms of acoustic energy are produced. 

Longitudinal Waves

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Transverse Waves

 These waves form the integral part of the whole concept of skinput.

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Longitudinal Waves

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 These waves travel through the rigid tissues of the arm, exciting the waves, which can respond to the mechanical vibrations by tapping on a rigid body.

Transverse Waves

 Tapping on soft regions of the arm creates higher amplitude transverse waves.

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Transverse Wave Propagation:

Longitudinal Wave Propagation:

Finger impacts displace the skin, creating transvers waves (ripples). The sensor is activated as the waves underneath it.

Finger impacts create longitudinal (compressive) waves that cause internal skeletal structures to vibrate.

Bio-Acoustics: Sensing These signals need to be sensed and worked upon. This is done by wearing the wave sensor arm-band.

BSNL EETP

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How it works?

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INPUT LOCATIONS:

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Interactive Capabilities

Variations in bone density, size and mass and the soft tissue and ts create acoustically different locations.

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Advantages:  No need to interact with the gadget directly.  Don’t have to worry about keypad. People with larger fingers get trouble in navigating tiny buttons and keypads on mobile phones. With skinput this problem disappears.

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Applications  Mobile  Gaming  I-pods  An aid to paralyzed persons

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Playing Tetris: Using fingers as control pad.

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Connect to any mobile device like ipod

Projection of a dynamic graphical interface

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Finger Inputs are classified and processed in real-time.

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Conclusion  This approach is to appropriate the human body as an input interface.  It described a wearable bio-acoustic array used to detect and localize finger tap on the hand and the forearm.  This system performs well even when the body is in motion.

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References • http://en.wikipedia.org/wiki/Skinput • http://research.microsoft.com/en-us/um/red mond/groups/cue/skinput/ • http:// news.bbc.co.uk/2/hi/technology/8587486.stm • http:// www.chrisharrison.net/index.php/Research/Sk input

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THANKYOU

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